You are studying droplets of various solutions and comparing them to water. what shape do they start as?

2 answers:

monitta3 years ago

7 0

Droplets begin as spherical shape before the influence of gravity determines their subsequent shape. Droplets of a liquid that are small enough evade the influences of gravity to the minimalist, due to their small surface area, hence maintains their spherical shape. As the droplet gets bigger, the increasing interfacial tension by gravity causes the internal pressure of the droplet to rise causing them to change shape vis-à-vis their viscosity.

cricket20 [7]3 years ago

5 0

In the case of liquid droplets, including water, surface tension is the factor, which is accountable for their shapes and configuration. Though can easily be malformed, the droplets of water seem to be pulled into a spherical shape due to the cohesive forces of the surface layer.

In the non-existence of other forces, involving gravity, the drops of almost all the liquids would be almost spherical.

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Question 7(Multiple Choice Worth 4 points)

Maurinko [17]

Answer: The correct option is B (self-replicating molecules, such as RNA and DNA)

Explanation:

The current theory of the process of evolution makes use of present day knowledge of genes and chromosomes to explain the source of genetic variation upon which natural selection works. These genes are discrete units of inheritance which determine hereditary characteristics. All the information for the inheritable characteristics of an individual are contained in these genes.

When a cell divides, the genes duplicate themselves so that each daughter cell has an identical set of genes as the original parent cell. These genes are passed from parents to offspring in the gametes of the parents.

Gene are found in the DNA( Deoxyribonucleic acid) molecules or RNA (Ribonucleic acid) molecules. These molecules are capable of self replication due to a process called mutation. Mutations are random changes in DNA that alter genetic information and sin introduce new characteristics. They may occur

--> in body cells or

--> during gamete formation.

Thus, evolution from vesicles to true cells is through self replicating molecules through the process of mutation which is the raw material for evolution

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I wouls say A. Camouflage, because the definition of camouflage is hide or disguise the presence of a (person, animal, or object) by means of camouflage. (Verb)

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All of the listed human actions affect the nitrogen cycle, with the exception of the

pav-90 [236]

<span>runoff of pesticides into streams and lakes.</span>

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What molecule can mix with water and it also a source of energy and a storage area?

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